Special algorithm of enhancing underwater targetradiated dynamic line spectrum

作     者：Guo Yecai Zhao Junwei Chen Huawei 

作者机构：Anhui Univ. of Science and Technology Huainan 232001 P. R. China Inst. of Acoustic Engineering Northwestern Polytechnical Univ. Xi'an 710072 P. R. China 

出 版 物：《Journal of Systems Engineering and Electronics》 (系统工程与电子技术（英文版）)

年 卷 期：2005年第16卷第4期

页      面：797-801页

核心收录：

学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 08[工学] 081002[工学-信号与信息处理] 110503[军事学-军事通信学] 

基　　金：ThisprojectwassupportedbytheSecienceFoundationofEduationalOffice AnhuiProvince(2003KJ092 2005KJ068ZDandDoctorofAnhuiUniversityofScienceandTechnology(2004YB05.) 

主　　题：higher-order cumulant different slice dynamic line spectrum underwater moving target Gaussian noise. 

摘      要：Performance of traditional adaptive line enhancer （ALE） in suppressing Gaussian noise is low and can get worse at low input signal-to-noise ratio（SNR）. For greatly overcoming these disadvantages, feature of fourth-order cumulant （FOC） different slices for quasi-stationary random process is analyzed, fourth order cumulant（FOC） different slice-based adaptive dynamic line enhancer is presented, and output SNR of the proposed enhancer is derived and bigger than that of the ALE via theoretical analysis. Simulation tests with the underwater moving target-radiated data have shown that the proposed enhancer outperforms the ALE in suppressing Gaussian noise and enhancing dynamic line spectrum feature.